Bunk bed



FIG. 1 is a top, front, and left side perspective view of a top portion of the bunk bed according to the present invention, shown separately for completeness of illustration;

FIG. 2 is a top, rear, and right side perspective view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a left side view thereof, the right side view being identical to the left side view;

FIG. 6 is a top view thereof;

FIG. 7 is a top, front, and left side perspective view of the bunk bed, showing the top and bottom portion;

FIG. 8 is a front view thereof;

FIG. 9 is a rear view thereof;

FIG. 10 is a left side view thereof, the right side view being identical to the left side view;

FIG. 11 is another perspective view thereof, but shown in an exploded position, and,

FIG. 12 is another perspective view thereof, but shown with the bottom portion in an alternate position.

The broken lines in the drawings illustrate environmental structure, and form no part of the claimed design. 

CLAIM The ornamental design for a bunk bed, as shown and described. 